Washing a car in the right order protects the paint and gets a better result. This guide walks through the stages we recommend, from the first rinse to the final wipe down.
1. Pre wash and snow foam
Start by rinsing loose dirt and grit off the car with a hose or pressure washer before any cloth or mitt touches the paint. Apply a snow foam or pre wash through a foam lance or pump sprayer, leave it to dwell for a few minutes so it can loosen dirt, then rinse thoroughly. This step removes as much abrasive material as possible before contact washing.
2. Shampoo and contact wash with two buckets
Wash the car with a pH neutral shampoo using the two bucket method: one bucket of wash solution and one bucket of clean rinse water, each with a grit guard in the base. Load your mitt from the wash bucket, wash a small section, then rinse the mitt in the rinse bucket before reloading it with shampoo. This keeps grit out of the wash solution and reduces the risk of swirl marks.
3. Decontamination with iron remover and clay
Chemical decontamination with an iron remover lifts embedded brake dust and ferrous particles from the paint, and is easy to see working as it turns purple on contact. Follow with a clay bar or clay mitt and a lubricant to remove any bonded contamination that washing and iron remover leave behind. Work on a cool, shaded car and keep the surface well lubricated to avoid marring.
4. Polishing and correction
Polishing with a dual action polisher and the right pad and compound removes fine scratches and swirl marks and restores clarity and gloss. A paint thickness gauge tells you how much clear coat is available before you start, so correction stays within safe limits. Work in manageable sections and check your progress under good lighting as you go.
5. Protection
Once the paint is clean and corrected, apply a wax, sealant or ceramic coating to protect it and make future washes easier. Waxes and sealants are quick to apply and renew every few months. Ceramic coatings take longer to install and cure but last much longer, and some of our coating installer stock is intended for trained applicators.
6. Wheels and tyres
Clean wheels with a dedicated wheel cleaner suited to the wheel finish, then dress tyres once they are clean and dry. Wheels are usually the dirtiest part of the car, so we recommend washing them first, before the main contact wash, using separate equipment to the bodywork.
7. Interior
Vacuum first to lift loose debris, then clean glass, plastics, leather and fabric with the products made for each surface. A dedicated leather cleaner and conditioner keeps upholstery supple, and a glass cleaner made for cars avoids the streaking and haze that household glass cleaners can leave on tinted windows.
8. Drying and finishing
Dry the car with a clean, dedicated drying towel or a blower to avoid drag marks, working from the top down. A final wipe with a detail spray adds a last layer of gloss and picks up any light marks left from drying. A good microfibre towel, washed separately from other laundry, makes a noticeable difference at every one of these stages.
Dilution and pH: measure, do not guess
Every one of our chemical listings states its pH and its recommended dilution. Measuring your dilution with a proper measuring jug, or a foam lance with adjustable settings, gives consistent results and avoids wasting product or, in the case of stronger chemicals, damaging the surface you are cleaning. Guessing a dilution by eye is one of the most common causes of a disappointing result or an avoidable mark.
Acid and alkaline products, such as some wheel cleaners and traffic film removers, are formulated for specific jobs and specific surfaces. They are effective at what they are designed for, but used at the wrong strength or on the wrong surface they can etch or discolour paint, trim and wheel finishes. Always check the listing for what the product is safe on before you use it.
A pH neutral product is generally safe on coated and uncoated paintwork and is the right choice for routine washing. Save stronger acid or alkaline products for the specific jobs they are designed for, such as heavily soiled wheels or engine bays, and always rinse thoroughly afterwards.
Gloss and Glide is a trading name of AT AUTO & SPARES LTD, a company registered in England and Wales, company number 17176482. Registered and trading address: Unit 1 Main Road, Tydd Gote, Wisbech, PE13 5QD, United Kingdom. Email info@atautoparts.co.uk, telephone +44 7429 827113.